A profile-likelihood reanalysis of 56 GRB rest-frame spectral lags gives 95% lower limits E_QG ≥ 2.07e14 GeV (linear) and E_QG ≥ 3.71e5 GeV (quadratic).
Astrophysical and Cosmological Searches for Lorentz Invariance Violation
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Constraints on Lorentz Invariance Violation from Gamma-ray Burst rest-frame spectral lags using Profile Likelihood
A profile-likelihood reanalysis of 56 GRB rest-frame spectral lags gives 95% lower limits E_QG ≥ 2.07e14 GeV (linear) and E_QG ≥ 3.71e5 GeV (quadratic).